Answer:
The correct answer is option c.
Step-by-step explanation:
Opportunity cost is the cost of sacrificing the second-best alternative. We know that resources are scarce and have alternative uses. To increase the production of one good we need to decrease or give up production of its alternative.
The law of opportunity cost states that the as we go on increasing the production of one good the opportunity cost will go on increasing. In other words, to produce more and more of good X we will need to sacrifice more and more of good Y.
If the opportunity cost of producing the 101st unit is 5Y then the opportunity cost for the 201st unit will be more than 5Y.